Sometimes users will encounter Excel-related error messages like:
"Warning: a zombie Excel version has been created. Please terminate it using Windows Task Manager."
"GoldSim has detected one or more 'orphan' instances of Excel!!! ... Zombie Excel (PID=5504) started by inaccessible GoldSim (PID=3632)...."
Screenshots are below:
What are Excel zombies and orphans and how do I get rid of them?